+- RPi -------+
+---+ 10.10.0.2 | +- Laptop ----+
| | WLAN AP +-))) (((-+ WLAN Client |
| | Bridge | | 10.10.0.5 |
| +-------------+ +-------------+
+- Router ----+ |
| Firewall | | +- PC#2 ------+
(Internet)---WAN-+ DHCP server +-LAN-+---+ 10.10.0.3 |
| 10.10.0.1 | | +-------------+
+-------------+ |
| +- PC#1 ------+
+---+ 10.10.0.4 |
+-------------+
Dependencies
sudo apt install -y hostapd
sudo systemctl unmask hostapd
sudo systemctl enable hostapd
Create a bridge device and populate the bridge
Create /etc/systemd/network/bridge-br0.netdev and add below content to create br0 interface:
[NetDev]
Name=br0
Kind=bridge
Create /etc/systemd/network/br0-member-eth0.network and add below content to enslave eth0 to br0:
[Match]
Name=eth0
[Network]
Bridge=br0
Enable service systemd-networkd:
sudo systemctl enable systemd-networkd
Define the bridge device IP configuration
Deny interfaces wlan0 and eth0 from getting IP address by editing /etc/dhcpcd.conf:
denyinterfaces wlan0 eth0
interface br0
Enable wireless device wlan
sudo rfkill unblock wlan
Configure the AP Software
Edit /etc/hostapd/hostapd.conf:
country_code=US
interface=wlan0
bridge=br0
ssid=YOUR_SSID
hw_mode=g
channel=7
macaddr_acl=0
auth_algs=1
ignore_broadcast_ssid=0
wpa=2
wpa_passphrase=YOUR_PASSWORD
wpa_key_mgmt=WPA-PSK
wpa_pairwise=TKIP
rsn_pairwise=CCMP
Change YOUR_SSID and YOUR_PASSWORD to your desired values.
Reboot
sudo reboot